Lifespan, ageing, and relevant traits

There have been claims of animals living up to 46 years [0434], which is not impossible but has not been verified either. In captivity, the record longevity of this species belongs to one wild born female that was about 39 years old when she died [0671].

Life history traits (averages)

Female sexual maturity

1,277 days

Male sexual maturity

Gestation

179 days

Weaning

487 days

Litter size

1 (viviparous)

Litters per year

0.8

Inter-litter interval

448 days

Weight at birth

772 g

Weight at weaning

Adult weight

18,250 g

Postnatal growth rate

Maximum longevity residual

177%

Metabolism

No information on metabolism is available.

References

[0671] Richard Weigl (2005), Longevity of Mammals in Captivity; from the Living Collections of the World